Routing Table Report 04:00 +10GMT Wed 20 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 363742
Prefixes after maximum aggregation: 165557
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180702
Total ASes present in the Internet Routing Table: 38204
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31759
Origin ASes announcing only one prefix: 15259
Transit ASes present in the Internet Routing Table: 5187
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 919
Unregistered ASNs in the Routing Table: 536
Number of 32-bit ASNs allocated by the RIRs: 1570
Number of 32-bit ASNs visible in the Routing Table: 1258
Prefixes from 32-bit ASNs in the Routing Table: 2900
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2478172960
Equivalent to 147 /8s, 181 /16s and 235 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151573
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90905
Total APNIC prefixes after maximum aggregation: 30340
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 87488
Unique aggregates announced from the APNIC address blocks: 37471
APNIC Region origin ASes present in the Internet Routing Table: 4517
APNIC Prefixes per ASN: 19.37
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 60
Number of APNIC addresses announced to Internet: 622248512
Equivalent to 37 /8s, 22 /16s and 194 /24s
Percentage of available APNIC address space announced: 78.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 141470
Total ARIN prefixes after maximum aggregation: 73141
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 113368
Unique aggregates announced from the ARIN address blocks: 46633
ARIN Region origin ASes present in the Internet Routing Table: 14486
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5539
ARIN Region transit ASes present in the Internet Routing Table: 1526
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802517120
Equivalent to 47 /8s, 213 /16s and 112 /24s
Percentage of available ARIN address space announced: 63.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 86527
Total RIPE prefixes after maximum aggregation: 49249
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79932
Unique aggregates announced from the RIPE address blocks: 52932
RIPE Region origin ASes present in the Internet Routing Table: 15800
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7875
RIPE Region transit ASes present in the Internet Routing Table: 2491
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 919
Number of RIPE addresses announced to Internet: 479500352
Equivalent to 28 /8s, 148 /16s and 152 /24s
Percentage of available RIPE address space announced: 77.2
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 33601
Total LACNIC prefixes after maximum aggregation: 7649
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32702
Unique aggregates announced from the LACNIC address blocks: 17046
LACNIC Region origin ASes present in the Internet Routing Table: 1485
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 262
Number of LACNIC addresses announced to Internet: 86046720
Equivalent to 5 /8s, 32 /16s and 248 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8163
Total AfriNIC prefixes after maximum aggregation: 1971
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6453
Unique aggregates announced from the AfriNIC address blocks: 2005
AfriNIC Region origin ASes present in the Internet Routing Table: 473
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24446976
Equivalent to 1 /8s, 117 /16s and 8 /24s
Percentage of available AfriNIC address space announced: 36.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2470 11044 938 Korea Telecom (KIX)
7545 1551 301 82 TPG Internet Pty Ltd
17974 1544 456 46 PT TELEKOMUNIKASI INDONESIA
4755 1507 635 171 TATA Communications formerly
7552 1298 1064 7 Vietel Corporation
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 BSNL National Internet Backbo
9583 1062 77 503 Sify Limited
4808 1049 2092 299 CNCGROUP IP network: China169
17488 966 187 106 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3605 3818 239 bellsouth.net, inc.
18566 1912 365 240 Covad Communications
1785 1807 681 121 PaeTec Communications, Inc.
4323 1615 1082 401 Time Warner Telecom
20115 1587 1535 625 Charter Communications
19262 1411 4744 391 Verizon Global Networks
7018 1366 7069 893 AT&T WorldNet Services
22773 1351 2897 89 Cox Communications, Inc.
7029 1291 791 304 Windstream Communications Inc
2386 1258 521 908 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
34984 535 106 184 BILISIM TELEKOM
6830 510 1780 315 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
12479 458 593 7 Uni2 Autonomous System
20940 458 131 354 Akamai Technologies European
8866 450 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 399 1803 312 UUNET - Commercial IP service
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1557 286 164 TVCABLE BOGOTA
8151 1438 2746 353 UniNet S.A. de C.V.
28573 1201 979 105 NET Servicos de Comunicao S.A
7303 1010 512 178 Telecom Argentina Stet-France
6503 749 354 74 AVANTEL, S.A.
14420 699 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 533 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 53 53 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 793 147 36 LINKdotNET AS number
8452 771 445 11 TEDATA
15475 511 74 8 Nile Online
36992 317 415 15 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 148 441 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3605 3818 239 bellsouth.net, inc.
23456 2900 702 1560 32-bit ASN transition
4766 2470 11044 938 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications
1785 1807 681 121 PaeTec Communications, Inc.
4323 1615 1082 401 Time Warner Telecom
20115 1587 1535 625 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1551 301 82 TPG Internet Pty Ltd
17974 1544 456 46 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1807 1686 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2470 1532 Korea Telecom (KIX)
17974 1544 1498 PT TELEKOMUNIKASI INDONESIA
7545 1551 1469 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2900 1340 32-bit ASN transition
4755 1507 1336 TATA Communications formerly
7552 1298 1291 Vietel Corporation
22773 1351 1262 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:26 /11:80 /12:232
/13:465 /14:795 /15:1397 /16:12014 /17:5885 /18:9834
/19:19510 /20:26122 /21:26186 /22:34788 /23:33666 /24:189391
/25:1086 /26:1270 /27:739 /28:207 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2224 3605 bellsouth.net, inc.
18566 1868 1912 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1428 2900 32-bit ASN transition
11492 1095 1141 Cable One
7011 1056 1158 Citizens Utilities
1785 1053 1807 PaeTec Communications, Inc.
7029 1038 1291 Windstream Communications Inc
6478 1013 1042 AT&T Worldnet Services
22773 866 1351 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:332 2:46 4:16 5:1 6:3 8:337
12:1965 13:1 14:490 15:15 16:3 17:5
20:10 23:14 24:1677 27:839 31:502 32:64
33:4 34:2 36:4 38:748 40:104 41:2514
42:34 44:3 46:1043 47:3 49:201 50:379
52:13 54:2 55:5 56:2 57:36 58:860
59:480 60:387 61:1123 62:1034 63:1931 64:3963
65:2296 66:3866 67:1873 68:1104 69:3043 70:759
71:386 72:1887 74:2413 75:318 76:341 77:890
78:712 79:461 80:1114 81:840 82:497 83:454
84:690 85:1063 86:521 87:765 88:336 89:1541
90:224 91:3966 92:521 93:1055 94:1348 95:859
96:418 97:263 98:891 99:37 101:80 103:139
106:73 107:22 108:72 109:1017 110:607 111:708
112:305 113:408 114:552 115:684 116:975 117:690
118:828 119:1171 120:314 121:676 122:1605 123:977
124:1303 125:1277 128:246 129:171 130:169 131:575
132:111 133:21 134:213 135:48 136:216 137:138
138:298 139:116 140:480 141:246 142:403 143:417
144:490 145:55 146:453 147:220 148:673 149:249
150:161 151:189 152:342 153:182 154:4 155:396
156:199 157:351 158:137 159:454 160:313 161:203
162:310 163:161 164:500 165:367 166:531 167:434
168:738 169:153 170:850 171:78 172:1 173:1601
174:609 175:381 176:143 177:169 178:996 180:900
181:22 182:503 183:232 184:347 185:1 186:1294
187:737 188:895 189:946 190:4972 192:5903 193:4973
194:3525 195:3019 196:1203 197:43 198:3577 199:3974
200:5559 201:1475 202:8413 203:8428 204:4234 205:2330
206:2669 207:2809 208:3988 209:3423 210:2690 211:1452
212:2102 213:1739 214:770 215:69 216:4940 217:1671
218:543 219:347 220:1232 221:496 222:337 223:218
End of report
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